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icang [17]
3 years ago
9

A chocolate company selects 50 random packages to check their weight. It finds that 2 packages have an incorrect weight. How man

y packages out of 2000 should the company predict have an incorrect weight.
Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer:

80

Step-by-step explanation:

A company selects 50 random packages from which two of them have an incorrect weight. That is to say: 4% of the packages are incorrrect.

Now if the company selects 2000 packages, we could predict that 4% of them could be incorrect. We know that 2000×0.04 = 80.

Therefore, 80 out of 2000 packages are expected to have an incorrect weight.

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Each student at some college has a mathematics requirement M (to take at least one mathematics course) and a science requirement
Furkat [3]

all students = 150

M = 60

S = 45

M and S = 25

(a) At least one of the two requirements:

M or S = M + S - (M and S) = 60 + 45 - 25 = 80

(b) Exactly one of the two requirements:

(M or S) - (M and S) = 80 - 25 = 55

(c) Neither requirement:

(all students) - (M or S) = 150 - 80 = 70

8 0
3 years ago
Mark and Sofia walk together down a long, straight road. They walk without stopping for 4 miles. At this point Sofia says their
victus00 [196]

Answer:

b

Step-by-step explanation:

Displacement and distance have different meanings. Displacement is a vector quantity and is the objects overall change in position. Distance is scalar quantity which describes how much ground an object covers during motion.

If they have covered 4 miles from a origin and we don't know the origin but we know that they start there and continue for 4 miles. It will be displacement if they started at a distance and walked a certain distance and the difference from start to finish is 4 miles. Therefore, it must be distance because we don't know the initial position and only that they walked 4 miles.

Mark is right if their starting point is a origin of a coordinate system

5 0
3 years ago
Quadrilateral KMPT is dilated by a scale factor of 3/4 to create K'M'P'T'. The perimeter of quadrilateral KMPT is x units. What
777dan777 [17]

Answer:

B) \frac{3}{4} x units

Step-by-step explanation:

Let quadrilateral KMPT be a rectangle with dimensions 12 units by 8 units. Then its perimeter would be equal to:

Perimeter of a rectangle = 2 (l + b)

where: l is the length = 12 units and b is the breadth = 8 units. So that:

Perimeter of KMPT = 2 (12 + 8)

                               = 40 units

Dilating KMPT by a scale factor of \frac{3}{4} would create K'M'P'T' of dimensions; \frac{3}{4} × 12 units by \frac{3}{4} × 8 units. Thus, the dimensions of K'M'P'T' would be 9 units by 6 units.

Perimeter of K'M'P'T' = 2 (l + b)

                                  = 2(9 + 6)

                                  = 30 units

Comparing the perimeters of KMPT and K'M'P'T', the perimeter of K'M'P'T' would be  \frac{3}{4} × perimeter of KMPT.

Therefore, if the perimeter of KMPT is x units, then;

         perimeter of K'M'P'T' = \frac{3}{4} * x units

                                            = \frac{3}{4}x units

6 0
4 years ago
Define and give examples of y-intercept
Otrada [13]

Answer:

where a line crosses the y-axis.

(0,18) and/or (0, 54)

Step-by-step explanation:

4 0
3 years ago
HELP PLEASE!!! What am i supposed to do for the lest 3 questions? I really need help. Thank you!!
Lunna [17]
Basically just what your answer means in terms of the situation for the 5th box, and then the 6th one you have to create a question that can be answered with the same solution as the original one
3 0
3 years ago
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